body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #FFA500; padding: 15px; position: sticky; top: 0; z-index: 100; }
        .logo { font-size: 24px; font-weight: bold; color: #fff; text-decoration: none; }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu { display: none; background: #fff; padding: 10px; border-radius: 5px; }
        h1 { color: #D2691E; margin: 30px 0 15px; }
        h2 { color: #E67E22; margin: 25px 0 10px; }
        h3 { color: #F39C12; margin: 20px 0 5px; }
        .download-btn { background: #27AE60; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; margin: 15px 0; display: inline-block; }
        .login-btn { background: #3498DB; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; margin: 15px 10px; display: inline-block; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .tag { background: #555; color: white; padding: 5px 10px; border-radius: 3px; margin: 5px; display: inline-block; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .mobile-menu { display: block; }
            .desktop-menu { display: none; }
        }